| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [not/n't] know [pron] | 7452 |
|
| 2 | [prep] know [pron] | 296 |
|
| 3 | [prep] [not/n't] know | 79 |
|
| 4 | [prep] [not/n't] [pron] | 26 |
|
